A light spring of constant 172 N/m rests vertically on the bottom of a large beaker of water.
A 5.64 kg block of wood of density 604 kg/m3
is connected to the top of the spring and
the block-spring system is allowed to come to
static equilibrium.
k
m
(a) (b)
k
∆L
What is the elongation ∆L of the spring?
The acceleration of gravity is 9.8 m/s
2
.